yep thats right should just be the one manifold bolt in the rear and unscrew the fitting. ive been taking mine on and off with lower and valve covers in place. but if you do have an explorer motor i am curious about what that front bracket in the picture is bolted to. mine was not an explorer motor
i had mustang tubes but there was no bypass plus the tubes exit straight out the back so there were some clearance issues.. i bought the explorer tubes to put on mine. why do you want to change?